Facebook says users can start and share rooms on Facebook through News Feed, Groups and Events, so it’s easy for people to drop by.

And it will soon add ways to create rooms from Instagram Direct, WhatsApp and Portal, too.

When you’re invited to a room, you can join from your phone or computer — no need to download anything to get started. If you have the Messenger app, you can play with AR effects like bunny ears, and new AI-powered features like immersive 360 backgrounds and mood lighting.

When you create a room, you choose who can see and join it. You can remove people from the call and lock a room if you don’t want anyone else to enter.

Messenger Rooms is rolling out in some countries this week and will expand to the rest of the world in the coming weeks.